For the BOk building, Yamasaki reprised the scheme of a Twin Tower at almost exactly half the scale: 52 stories and 667 feet tall, to the Twin Towers' 110 floors (1,362 and 1,368 feet). It has 31 steel perimeter columns per side, to the Twin Towers' 59, producing the same eye-boggling vertical lines on each face. (As Jean Baudrillard noted of the more famous pair, well before its destruction, it is "blind," with no side presenting a facade.) The BOk, too, has a bilevel lobby, whose height is matched by arched windows. But the arches are big and round, like a child's plain wooden building blocks, rather than the Venetian Gothic ogees that, in the World Trade Center, flowed directly into the perimeter columns.